stellar

Stellar - Chess engine written in C
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moves.h (1853B)

      1 #ifndef STELLAR_MOVES_H
      2 #define STELLAR_MOVES_H
      3 
      4 #include <stdbool.h>
      5 #include <stdint.h>
      6 
      7 #include "board.h"
      8 
      9 typedef struct Move Move;
     10 struct Move {
     11     unsigned source : 6;
     12     unsigned target : 6;
     13     unsigned piece : 5;
     14     unsigned piece_capture : 5;
     15     unsigned piece_promote : 5;
     16     bool dbl : 1;
     17     bool enpassant : 1;
     18     bool castle : 1;
     19     bool capture : 1;
     20     bool promote : 1;
     21 };
     22 
     23 typedef struct MoveList MoveList;
     24 typedef struct MoveE MoveE;
     25 
     26 struct MoveList {
     27     int count;
     28     struct MoveE {
     29         Move move;
     30         int score;
     31     } moves[256];
     32 };
     33 
     34 int move_cmp(Move a, Move b);
     35 Move move_encode(Square src, Square tgt, Piece piece, Piece capture,
     36                  Piece promote, int dbl, int enpassant, int castle);
     37 void move_print(Move move);
     38 MoveList *move_list_new(void);
     39 
     40 void move_list_free(MoveList **p);
     41 Move move_list_index_move(const MoveList *self, int index);
     42 int move_list_index_score(const MoveList *self, int index);
     43 void move_list_index_score_set(MoveList *self, int index, int score);
     44 
     45 int move_make(Move move, Board *board, int flag);
     46 
     47 int move_list_size(const MoveList *self);
     48 void move_list_reset(MoveList *self);
     49 void move_list_add(MoveList *self, Move move);
     50 void move_list_print(const MoveList *self);
     51 void move_list_sort(MoveList *list);
     52 
     53 MoveList *move_list_generate(MoveList *moves, const Board *board);
     54 
     55 #define move_source(move) (move.source)
     56 #define move_target(move) (move.target)
     57 #define move_double(move) (move.dbl)
     58 #define move_enpassant(move) (move.enpassant)
     59 #define move_castle(move) (move.castle)
     60 #define move_capture(move) (move.capture)
     61 #define move_promote(move) (move.promote)
     62 
     63 #define move_piece(move) (piece_from_index(move.piece))
     64 #define move_piece_capture(move) (piece_from_index(move.piece_capture))
     65 #define move_piece_promote(move) (piece_from_index(move.piece_promote))
     66 
     67 #endif